A backlight dimming algorithm for low power and high image quality LCD applications

Authors:
Hyunsuk Cho;Oh-Kyong Kwon
Affiliations:
Div. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea;-
Venue:
IEEE Transactions on Consumer Electronics
Year:
2009

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Saliency aware display power management

Proceedings of the Conference on Design, Automation and Test in Europe

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Abstract

A new backlight dimming algorithm is proposed to reduce power consumption of backlight and improve image quality in LCD applications. The proposed algorithm is consisted of two new techniques: the brightness modulation of the backlight and pixel compensation. The power saving ratio of four typical benchmarking images is 14-43% by using proposed brightness modulation algorithm. The proposed pixel compensation removes the clipping artifact and unnecessary luminance reduction. The proposed backlight dimming algorithm is demonstrated on 7-inch TFTLCD with LED backlight.